Incubator-heater.



G.A;' DAMON.

INUUBATOR HEATER. 4 APPLICATION FILED AUIMZB, 1908.

' PatentedYFeb.`2s, 1911.

INVENTOR:

WITNEsss:

amers PEncRs co., wAsymaroN, n. c.

4UNITED OFFICE. l

CHARLES A. DAIVION, OF BUFFALO, NEVT YORK, ASSIGNOR TO CYPHERS INCUATOR COMPANY, OF BUFFALO, NEW YORK.

INCUBATOR-HEATER.

Specification of Letters Patent.

Patented Feb. 28, 1911.

To all whom 'it may concern:

Be it known that I, CHARLES A. DaMoN, a citizen of the United States, and .resident of Buffalo, in the county of Erie and State of New York, have invented certain new and useful Improveniel'its in Incubator-Heaters, ofy which the following is a specification.

This invention relates to heaters for incubators,l brooders, and the like.

The object of the invention is to produce a heater having the maximum provisions against the spread of tire from the lamp.

In the drawings Figure 1 is a central, vertical section through an apparatus embodying this invent-ion, but in which the lamp and its 'directly attached parts are shown in elevation; Fig. 2 is a front elevation of the lamp box; and Fig. 3 is a horizont-alsection on the line 3 3 of Fig. 1.

The heater shown in vertical section in Fig. 1 is of a type heretofore in extensive use, that is, it comprises the usual heat tube 1, into which the products of combustion of the lamp are discharged, and the concentric hot air tube 4, surrounding the heat tube.

The present invention relates particularly to the means for supporting and inclosing the lamp by which the heat is supplied.

To the bottom of the heater, as, for instance, to the spacing bars 12 between the hot air tube and the heat tube, is hung a re-tight lamp box 17, composed o-f metal and having attached toits top 13 a neck 14 fitting into the bott-om of the heat tube 1. Through the neck 14 projects the chimney 15 of the lamp.

The lamp box 17 has a door 18 provided with spring hinges 19, which keep the door closed except While it is held open for the purpose of access to the lamp. In a suitable portion of the lamp box, as, for instance, in the door 18, are fixed air inlet openings 2O entirely covered by fine wire gauze 21, through which flame cannot pass. An automatic catch 22 of suitable character engages and holds the door when it is swung shut by the spring hinges 19. The oil pot 16 of the lamp is supported above the bottom of the lamp box, and the sides ofthe lamp box extend, oil tight, to a substantial distance above said bottom. Any leakage of oil from the oil pot 16 accumulates, therefore, in the bottom of the lamp box. The capacity of the bottom of the lamp box is such` that it will contain all the oil which a lled oil p ot can hold. A suitable way of supporting the oil pot above the bottom of the box is upon a pair of crossed metal strips 23, having upward projections 24, their outer ends forming guides for the oil pot so as to compel. it, when placed in the lamp box 17, to be properly centered, so that the chimney 15 is in the center of the neck 14, and thus delivers the heated air and products of combuston into the heat tube 1 In order to protect the lamp from explosion, in ease the interior of the lamp box 17 should become super-heated by improper action of the lamp, the ordinary screw ll ing cap 25 carries a small tube 2G provided with a fine bore, which co-mn'ninicates with the interior of the oil pot. If, therefore, the oil pot should become heated, and the oil Vapor should stream out through the tube 2G-and should become ignited, it would burn at the upper end of the tube without communicating flame througli the bore of the tube to the oil in the oil pot.

In order to prevent an operator from turning the lamp in the box to bring the filling cap near the door, for the purpose of filling the oil pot without removing the lamp from the lamp box, a plate 27 is placed in the lamp box parallel to its bottom. This plate has a converging recess of such forni that the filling cap 2:3 rests at the extren'ie rear end 2S thereof. The converging sides of the recess engage the filling-cap when the lamp is inserted in the box and guide it to its proper position at the back of the lamp box, distant from the door; and inaccessible from the open door.

The lamp box is held up against the bottoni of the heat tube 1 by hook-bolts 29, hooking over the spacing barsl 12 above mentioned, and having their lower ends exn tending through the top of the box, and provided with nuts 30, within the lamp box 17.

In order to provide means for extinguishing the lamp, ifit should smoke, a fine wire gauze or perforated metal partition 31 is placed in the heat tube 1 a short distance abo-ve the end of the chimneyv 15. If the lamp smokes, the soot will soon clog the interstices of the wire gauze or perforated metal, and stop the passage of the products of combustion up the heat tube l, whereupon they will be forced buck upon the lamp and will extinguish it automatically iu a very short time.

What I claim is:-

l. A heater for incubator-s and the like having, in combination7 a lamp, a lamp-box adapted to receive the lamp and comprising a body and a door, one of said parts being provided With a constantly-open air-inlet provided with a. fire-screen, and the body having, an oil-tight bottom and a lateral y lamp-receiving opening closed by said door and With its lower extremity at a substantial distance above the bottom of the body so as to provide an oil-receptacle at the bottom of the body, means for automatically closing and holding` closed the door except when it is held open by the` operator for the insertion or removal of the lamp, and a lamp-support which .supports the lamp above the bottom of the lamp-box so as to afford space for the collection of oil escaping from the lamp.

2, A heater for incubatore and the like having, in combination, a lamp comprising a circular oil-font provided With an eccentrically located filling-cap, a lamp-box With a lateral openiilgntlvufough which the luiup is inserted and removed, and a guide located in the lamp-box in position to be engaged. by the filling-cap When the lamp is inserted, the guide having curved pontions converging toward the real' of the ,lamp-box and away from said opening so as to guide the filling-cap toward a point Where it is inaccessible through said opening and to prevent rotation of the lamp when in the lamp` box.

3. A heater for incubatore and the like, having a heat tube for the products of combustion, a fire-tight lamp boX fitting the inlet end of said heat tube having an air inlet opening` provided With a iire screen; a door; a lamp Within said box having an oil pot provided With e filling` cap on its upper surface; a. guide plate Within said lamp box for guiding the filling cap to the back of the lamp boX away from the door; and a centering support for the base of the lamp.

CHARLES A. DAMON. Witnesses GRANT M. CURTIS, CHARLES E. ADAIR.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

